/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2006 by:
EXSE, Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53115 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.model.filterencoding;
import org.deegree.model.feature.Feature;
/**
*
* <p>--------------------------------------------------------------------------</p>
*
* @author Markus Schneider
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @version $Revision: 1.5 $ $Date: 2006/07/12 14:46:14 $
*/
public interface Operation {
/** Returns the name of the operator. */
String getOperatorName ();
/**
* Returns the operator's id.
*/
int getOperatorId ();
/**
* Calculates the <tt>Filter</tt>'s logical value based on the
* certain property values of the given feature.
* @param feature that determines the values of <tt>PropertyNames</tt>
* in the expression
* @return true, if the <tt>Filter</tt> evaluates to true, else false
* @throws FilterEvaluationException if the evaluation fails
*/
public boolean evaluate (Feature feature) throws FilterEvaluationException;
/** Produces an indented XML representation of this object. */
public StringBuffer toXML ();
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: Operation.java,v $
Revision 1.5 2006/07/12 14:46:14 poth
comment footer added
********************************************************************** */